dynatype 1.0.4

The package helps developers make the process easy by validating the response of type JSON. The person using this package does not need to worry about any exception in JSON Map Entries. He can define [...]

example/dynatype_example.dart

import 'dart:convert';

import 'package:dynatype/dynacheck.dart';
import 'package:dynatype/dynatype.dart';

//This is My json List which i will receive in response or request.
//You can try removing fields and text it.
String json =
    "{\"book\":{\"name\":\"200\",\"author\":\"Lingod\"},\"language\":\"english\",\"language2\":\"english\",\"publish\":1988}";

void main() {
  //Here i am defining the fields i required.
  final List<DynaType> _requiredMain = [
    DynaType(key: "book", type: Map<String, dynamic>),
    DynaType(key: "language", type: String),
    DynaType(key: "language2", type: String),
    DynaType(key: "publish", type: int),
  ];

  final List<DynaType> _requiredBook = [
    DynaType(key: "name", type: String),
    DynaType(key: "author", type: String),
  ];

  //this is the [instance.verifyFields()] function which returns the missing, null and wrong data type Keys.
  DynaCheck main = DynaCheck(data: jsonDecode(json), presence: _requiredMain);
  if (main.verifyFields().isEmpty) {
    DynaCheck book =
        DynaCheck(data: jsonDecode(json)["book"], presence: _requiredBook);
    if (book.verifyFields().isEmpty) {
      print("The response is correct");
    } else {
      print("Missing or incorrect fields ${book.verifyFields().notFound.dyna}");
    }
  } else {
    print("Missing or incorrect fields ${main.verifyFields().notFound.dyna}");
  }
}